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Trends Biotechnol. 2018 Jul;36(7):673-685. doi: 10.1016/j.tibtech.2018.02.004. Epub 2018 Feb 27.

Simultaneous Removal of Multicomponent VOCs in Biofilters.

Author information

1
College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; These authors contributed equally to this paper. Electronic address: yangc@hnu.edu.cn.
2
College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; These authors contributed equally to this paper.
3
College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541006, China; These authors contributed equally to this paper.
4
School of Environment, Tsinghua University, Beijing 100084, China; These authors contributed equally to this paper. Electronic address: xijinying@tsinghua.edu.cn.

Abstract

Volatile organic compounds (VOCs) are significant atmospheric pollutants that cause environmental and health risks. Waste gases polluted with multiple VOCs often need to be purified simultaneously in biofilters, which may lead to antagonistic, neutral, or synergistic effects on removal performance. Antagonism limits the application of biofilters to simultaneous treatment of multiple VOCs, while synergism has not yet been fully exploited. We review the interactions among multiple target pollutants and the changes in the bioavailability and biodegradability of substrates that are responsible for substrate interactions. Potential strategies for enhancing biofilter performance are then discussed. Finally, we propose further efforts to alleviate antagonism by enhancing bioavailability and biodegradability, and discuss possible challenges to take advantage of synergism.

KEYWORDS:

VOC; bioavailability; biofilter; biofiltration; hydrophilicity; hydrophobicity

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